When two lattices are brought together, as in the above examples, a superlattice structure called a moiré pattern emerges, with varying amounts of periodicity [1]}[2]}[3]}. These twisted bilayers have demonstrated exotic properties such as superconductivity [4]}[5]}[6]}. In cases considered here, we will assume that the moiré pattern does have some cell for which the pattern is truly periodic. Note that it has been demonstrated that in real systems, the lattices may be incommensurate and thus do not have such a repeating symmetry [7]}.
